Hey there,
You can replace the sensor glass/charger in this model. To do that you will need to teardown the watch.
Here is video on how to do it: [br]
https://www.youtube.com/watch?v=JeJ-V9l9FiQ&t=1s[br]
This video shows process on apple watch se 40mm but 44 is almost exactly the same.
You can try to buy replacement parts from aliexpress or try to hunt some locked/damaged watch on ebay.